Lino LNUHZ-10 magnetic flap level fuel oil water tank gauge meter price is works according to the principle of buoyancy and magnetic coupling. When the liquid level in the measured container rises and falls, the float in the main pipe of the liquid level gauge also rises and falls, and the permanent magnet in the float is transmitted to the field indicator through magnetic coupling, driving the red and white turning columns to turn 180°, when When the liquid level rises, the turning column turns from white to red, and when the liquid level drops, the turning column turns from red to white, and the red and white boundary of the indicator is the actual height of the medium liquid level in the container, so as to realize the liquid level. instructions.